150000 U / ml Liquid Acid Protease Enzymes For Ethanol

150000 U / ml Liquid Acid Protease Enzymes For Ethanol

Product Details:

Place of Origin: Jiangsu, China
Brand Name: Boli
Certification: Halal, Kosher ISO9001, ISO14001, ISO22000
Model Number: Acid Protease AP-150

Payment & Shipping Terms:

Minimum Order Quantity: 400kg
Price: Negotiable
Packaging Details: 25kg, 30kg plastic drums or 1125kg IBC totes
Delivery Time: 15-20 Days
Payment Terms: T/T, L/C , D/P
Supply Ability: 1000MT to 1500MT Per Year
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Detail Information

Place Of Origin: Jiangsu, China (Mainland) Activity: 150,000 U/ml (minimum)
Systematic Name: EC Declared Enzyme: Protease
Grade: Technical Grade Certification: Halal, Kosher
High Light:

fermentation enzymes


ethanol enzyme


150000U/ml Ethanol Acid Protease Enzymes

Product Description


Acid Protease AP-150

Technical Grade Liquid Protease for Ethanol 

Halal and Kosher Certified




Declared Enzyme Acid Protease
Systematic Name EC
Activity 150,000 U/ml (minimum)
Appearance Light to dark brown Liquid
Product pH 2.5~5.0
Specific gravity

≤1.25 g/ml



Acid Protease AP-150 is produced from selected strains of Aspergillusniger through submerged fermentation and extraction and refining processes. It can catalyze the hydrolysis of proteins under acidic conditions.

AP-150 is applicable to hydrolysis of proteins with acidic medium.





pH Temperature Ions

  Effective pH 2.0 to 6.0


  Optimal pH  2.5 to 3.5

 Effective temperature 30 to 65°C

 Optimal temperature 40 to 50°C

 Activated by Mn2+, Ca2+, Mg2+

 Inhibitors: Cu2+, Hg2+, Al3+




A robust protease suitable for high concentration fermentation in ethanol production, capable to promote yeast growth and enable more ethanol yields in a cost-effective way.


  • Promote raw material particles dissolved

          AP-150 can hydrolyze the proteins of the raw materials, thus destroy the interstitial cell wall structure of starch granules, so as to release the starch wrapped in the granules,

          which is conducive to saccharification.

  •  Promote the growth of yeast with reproduction

           Free amino nitrogen (FAN) is the most effective nitrogen source for yeast. Adding AP-150 during alcoholic fermentation can effectively hydrolyze proteins and peptides in the

           raw materials so as to generate FAN that yeasts can absorb, thus promote the growth of yeasts, increase the quantities of yeasts in the fermented mash, and shorten fermentation cycle.


  • Beneficial to high concentration fermentation

          In high concentration fermentation of alcohol, it is mainly nutritional deficiencies rather than the accumulation of alcohol that leads to the decrease of fermentation activity.

          Free amino acids (FAN) can not only shorten the fermentation cycle but also increase the output of alcohol, improve ethanol tolerance and survival rate of yeasts.

          Therefore, AP-150 is the best nutrient for yeast growth and accelerator for fermentation.



In intermittent fermentation, it should be added at one time when the fermentation tank is filled with one third materials. In continuous fermentation, it should be added consecutively depending on the amount of saccharification mash fed at the inlet of fermentation tank.


Recommended dosage of AP-150 is 0.001 to 0.01% w/w (dry solids basis). Actual dosage should be depending on the raw materials and process of production.



AP-150 is packaged in 25kg, 30kg plastic drums or 1125kg IBC totes. Customized packaging is available upon request.


AP-150 has been formulated for optimal stability. Typical shelf-life is six months if this product is stored at 0∼ 10°C in its original packaging, sealed and unopened, protected from the sunlight. Prolonged storage and/or adverse conditions such as higher temperatures may lead to a higher dosage requirement, thus should be avoided.


Inhalation of enzyme dust and mists should be avoided. In case of contact with the skin or eyes, promptly rinse with water for at least 15 minutes. For detailed handling information, please refer to the Safety Data Sheet.

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